JEE Advanced 2020 Full Test 5 Paper 1

Question : 51 of 54

Marks: +1, -0

Tangent are drawn from any point on the hyperbola x2∕9−y2∕4=1 to the circle x2+y2=9 If the locus of the mid-point of the chord of contact is a a(x2+y2)2=bx2−cy2, then the value of a2+b2+c2−7870 is equal to ......